TE Connectivity AMP Connectors 1-794527-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-794527-1 is a rectangular connector header designed for through-hole, right-angle board-to-board or cable applications. This connector features a 4-position configuration with 0.165" (4.20mm) pitch spacing and is part of the AMP-DUAC series. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

1-794527-1

TE Connectivity AMP ConnectorsIn Stock: 7791-794527-1 Datasheet

Current PartRFQ

1586044-4

TE Connectivity AMP ConnectorsIn Stock: 32561586044-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1-794527-1 is based on strict alignment of the following critical parameters:

Electrical Compatibility:

• Identical pitch spacing: 0.165" (4.20mm)
• Identical row spacing: 0.165" (4.20mm)
• Identical number of positions: 4
• Identical number of rows: 2
• Identical voltage rating: 600VAC
• Identical contact type: Male Pin

Mechanical Compatibility:

• Identical connector type: Header
• Identical mounting type: Through Hole, Right Angle
• Identical shrouding configuration: Shrouded - 4 Wall
• Identical termination method: Solder
• Identical fastening type: Locking Ramp
• Identical insulation material: Polyamide (PA), Nylon

Regulatory & Environmental Compliance:

• Identical material flammability rating: UL94 V-0
• Identical RoHS status: ROHS3 Compliant
• Identical moisture sensitivity level: 1 (Unlimited)

The substitute part 1586044-4 meets all critical substitution criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1586044-4 rectangular connector header is a direct functional substitute for the obsolete 1-794527-1. Both connectors maintain identical electrical and mechanical specifications across all critical parameters including pitch spacing, voltage rating, shrouding configuration, and termination method.

Compliance Status: Both parts are ROHS3 compliant and carry UL94 V-0 material flammability ratings, meeting current regulatory requirements for industrial and general-purpose applications.

Operational Considerations: The substitute part 1586044-4 operates across a narrower temperature range (-40°C to 105°C) compared to the main part (-55°C to 105°C). Applications requiring operation below -40°C require evaluation against specific system requirements.

Physical Dimensions: Minor variations exist in contact post length (0.138" versus 0.142") and insulation height (0.394" versus 0.386"). These variations fall within standard manufacturing tolerances and do not affect board-level compatibility or mating performance.

Contact Material Difference: The main part uses copper alloy contacts while the substitute uses brass alloy contacts. Both materials are tin-finished and suitable for the specified 600VAC rating and general-purpose applications.

Product Status: The substitute part maintains active product status with significantly higher inventory availability (3207 pieces versus 700 pieces), supporting long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 1586044-4 be used as a direct replacement for the 1-794527-1 in existing designs?

A: Yes. The 1586044-4 maintains identical pitch spacing (0.165"), row configuration (2 rows, 4 positions), mounting type (through-hole right-angle), and electrical ratings (600VAC). Both connectors use identical shrouding (4-wall), termination method (solder), and fastening type (locking ramp). The connectors are mechanically and electrically interchangeable at the board level.

Q: What is the difference in contact material between these two parts?

A: The 1-794527-1 uses copper alloy contacts while the 1586044-4 uses brass alloy contacts. Both materials are tin-finished to identical specifications and perform equivalently for the 600VAC rating and general-purpose applications specified.

Q: Does the operating temperature range difference affect substitution?

A: The 1586044-4 operates from -40°C to 105°C, compared to the 1-794527-1 range of -55°C to 105°C. For applications operating above -40°C, the substitute part is fully compatible. Applications requiring operation below -40°C must evaluate system-specific temperature requirements.

Q: Are there dimensional differences that affect PCB layout?

A: Minor dimensional variations exist: contact post length differs by 0.004" (0.10mm) and insulation height differs by 0.008" (0.20mm). These variations are within standard manufacturing tolerances and do not affect board-level compatibility, mating performance, or through-hole mounting.

Q: What is the current rating for the 1586044-4?

A: The 1586044-4 is rated for 9A per contact. The original 1-794527-1 does not specify a current rating in available documentation.

Q: How does packaging differ between these parts?

A: The 1-794527-1 packaging is not specified in available documentation. The 1586044-4 is supplied in tray packaging, which is standard for production and assembly environments.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1-794527-1 and 1586044-4 are ROHS3 compliant and carry UL94 V-0 material flammability ratings, meeting current regulatory requirements.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts have a moisture sensitivity level (MSL) of 1, indicating unlimited shelf life without special moisture control measures.